CN110230784A - A kind of LED bulb - Google Patents

A kind of LED bulb Download PDF

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Publication number
CN110230784A
CN110230784A CN201910583421.4A CN201910583421A CN110230784A CN 110230784 A CN110230784 A CN 110230784A CN 201910583421 A CN201910583421 A CN 201910583421A CN 110230784 A CN110230784 A CN 110230784A
Authority
CN
China
Prior art keywords
connecting portion
plastic casing
led bulb
bulb according
radiating piece
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910583421.4A
Other languages
Chinese (zh)
Inventor
宋先勇
林利民
陈文坡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hongyi Lighting Co Ltd
Original Assignee
Hongyi Lighting Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hongyi Lighting Co Ltd filed Critical Hongyi Lighting Co Ltd
Priority to CN201910583421.4A priority Critical patent/CN110230784A/en
Publication of CN110230784A publication Critical patent/CN110230784A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21KNON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20Light sources comprising attachment means
    • F21K9/23Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/232Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/502Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/506Cooling arrangements characterised by the adaptation for cooling of specific components of globes, bowls or cover glasses
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/70Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/70Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/85Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
    • F21V29/89Metals
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

The present invention relates to a kind of LED bulbs, light bulb includes lampshade, plastic casing and lamp cap, lampshade further includes drive control plate, light source board and the cooling mechanism in the cavity that lampshade and plastic casing are enclosed, cooling mechanism includes radiating piece, radiating piece has first connecting portion and second connecting portion, first connecting portion is in the ring disk shape, and the downside of first connecting portion is docked with light source board, second connecting portion is cylindrical, the outer peripheral surface of second connecting portion is docked with plastic casing, and drive control plate is set to the inner circumferential side of the second connecting portion of tubular.The LED bulb, novel in structural design, heat spreader structure design are simple ingenious, and heat dissipation effect is fabulous, in addition, the integrally-built setting of LED bulb through the invention, so that the process (radiating piece and plastic casing are integrally formed, without installation) of installation assembly is reduced, to reduce cost of manufacture.

Description

A kind of LED bulb
Technical field
The present invention relates to a kind of LED bulbs.
Background technique
At work, a series of adverse effect can be generated to the use of LED light if heat dissipation is bad.Just such as LED light Source is electric energy to be converted to light source, and all electric energy of but not can be converted to light source, this will abide by law of conservation.If it is If extra electric energy, it is possible to thermal energy can be converted to, for LED light, heat dissipation is the most important thing, if heat dissipation is bad A series of adverse effect can be generated to the use of LED light.If LED light source overheats, and can not exclude these heats If going out, it will result in these materials repeatedly by high-temperature oxydation, so as to cause LED light source quality decline.In addition, the lamp of LED Has radiator structure if being designed unreasonable, it cannot quickly exclude extra thermal energy, the temperature of LED light source It is gradually increasing, the resistance being subject to can be bigger, and caused electric current will be more and more, and heat generated in this way will be increasingly It is more, in this way, which LED light source will cause electronic component damage because of overheat, so as to cause failure, cause LED street lamp Reduced lifetime.In view of this heat-sinking capability of LED light is highly important.
In addition, there are many material of LED bulb composition, such as aluminium and plastics, and in rising-heat contracting-cold, because the two material is different, Therefore the shrinking percentage of the two is not also identical, and deformation slightly can all cause to form extrusion stress between component, deformed damaged occurs The case where.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a kind of LED bulb.
In order to solve the above technical problems, the technical solution adopted by the present invention is as follows:
A kind of LED bulb, light bulb include lampshade, plastic casing and lamp cap, and lampshade further includes being set to lampshade and plastic casing enclosing Drive control plate, light source board and cooling mechanism in the cavity of formation, cooling mechanism include radiating piece, and radiating piece has first Interconnecting piece and second connecting portion, first connecting portion is in the ring disk shape, and the downside of first connecting portion is docked with light source board, and second connects Socket part is cylindrical, and the outer peripheral surface of second connecting portion is docked with plastic casing, and drive control plate is set to the second connecting portion of tubular Inner circumferential side.
Preferably, multiple stress elimination holes for running through setting along its thickness direction are offered in first connecting portion.
Preferably, what multiple stress elimination holes were along the circumferential direction successively spaced is opened in the first connecting portion of the ring disk shape.
Preferably, the width value in stress elimination hole is 2.5mm ~ 3.5mm.
Preferably, the distance value of stress elimination hole to first connecting portion outer periphery is less than it to first connecting portion inner periphery Distance value.The outer back gauge of the outside in stress elimination hole to first connecting portion is 3.5mm.
Preferably, stress elimination hole is kidney slot, and the length in each stress elimination hole is identical or different.
Preferably, first connecting portion and second connecting portion with a thickness of 1.0 ~ 1.5mm.
Preferably, the upper side of first connecting portion and the outer peripheral surface of second connecting portion and the seamless attaching of plastic casing.
Preferably, radiating piece and plastic casing integrated injection molding.
Preferably, plastic casing includes the first noumenon of the ring disk shape, connect with the inner circumferential of the first noumenon and cylindrical Second ontology is connect and cone that upper end is docked with lamp cap, the outer peripheral surface of second connecting portion and the second ontology with the second ontology Inner peripheral surface mutually attach, the upper surface of first connecting portion is mutually attached with the lower surface of the first noumenon.
Preferably, plastic casing is additionally provided with radiator structure, and radiator structure includes being connected to the first noumenon upper surface and the Multiple cooling fins between two body peripheral faces, multiple cooling fins are along the circumferential direction successively spaced apart.Cooling fin is in foliaceous, And its outer profile side is in arc transition.
Preferably, radiator structure further includes multiple heat bulges set on the first noumenon upper surface.At every adjacent two One group of heat bulge, totally five and distribution triangular in shape is arranged in position between cooling fin.
Due to the implementation of above technical scheme, the invention has the following advantages over the prior art:
LED bulb of the invention, novel in structural design, heat spreader structure design is simple ingenious, and heat dissipation effect is fabulous, in addition, The integrally-built setting of LED bulb through the invention, so that reducing process (radiating piece and the plastic casing one of installation assembly Molding, without installation), to reduce cost of manufacture.
Further, cold in thermal expansion for radiating piece and plastic casing mating connection mode and structure setting of the invention In the case where contracting, the radiating piece of aluminum, because of different shrinking percentages, causes stress that can not discharge, is easy to appear modeling from the shell of plastics The phenomenon that material shell body cracks, by opening up stress relief hole in the first connecting portion of the radiating piece of aluminum, stress can discharge To the position of aperture, it effectively prevent plastic shell cracking phenomena;
Radiating piece does not have aperture when first secondary design, (- 40 DEG C to 100 DEG C) 30 minutes circulations in cooling thermal impact experiment, 80th time circulation finds that plastic casing has cracking phenomena, is doing cooling thermal impact experiment after aluminum component aperture, 200 circulations have no modeling There is cracking phenomena in material shell body.
Detailed description of the invention
Fig. 1 is the main to the schematic diagram of the section structure of light bulb of the present invention;
Fig. 2 is the schematic perspective view of light bulb of the present invention;
Fig. 3 is the schematic perspective view of radiating piece of the present invention;
Wherein: 1, lamp cap;2, plastic casing;21, the first noumenon;22, the second ontology;23, cone;24, cooling fin;25, it radiates Protrusion;3, lampshade;4, light source board;5, drive control plate;6, radiating piece;60, stress relief hole;61, first connecting portion;62, Two interconnecting pieces.
Specific embodiment
The present invention will be further described in detail with specific embodiment with reference to the accompanying drawing.
Up and down direction of the invention be subject to light bulb normal use when placement state, i.e., thread head direction be it is upper, Under bulb shield direction is;
As shown in Figure 1 to Figure 3, a kind of LED bulb, light bulb include lampshade 3, plastic casing 2 and lamp cap 1, and lampshade 3 further includes being set to Drive control plate 5, light source board 4 and the cooling mechanism in cavity that lampshade 3 and plastic casing 2 are enclosed, cooling mechanism packet Include radiating piece 6, radiating piece 6 has first connecting portion 61 and second connecting portion 62(first connecting portion 61 and second connecting portion 62 With a thickness of 1.3mm), first connecting portion 61 is in the ring disk shape, and the downside of first connecting portion 61 is docked with light source board 4, and second connects Socket part 62 is cylindrical, and the outer peripheral surface of second connecting portion 62 is docked with plastic casing 2, and drive control plate 5 is set to the second of tubular The inner circumferential side of interconnecting piece 62.
Specifically, multiple stress elimination holes for running through setting along its thickness direction are offered in first connecting portion 61.It is multiple What stress elimination hole was along the circumferential direction successively spaced is opened in the first connecting portion 61 of the ring disk shape.
Further, stress elimination hole is kidney slot, and the length in each stress elimination hole is identical or different;Stress elimination hole Distance value to 61 outer periphery of first connecting portion is less than it to the distance value of 61 inner periphery of first connecting portion.Outside stress elimination hole While the outer back gauge to first connecting portion 61 is 3.5mm.The width value in stress elimination hole is 3mm.
Further, the outer diameter of first connecting portion 61 is 105mm, and the outer diameter of second connecting portion 62 is 58mm, the second connection The height value in portion 62 is 60mm.The internal diameter of first connecting portion 61 is identical as the internal diameter of second connecting portion 62.Second connecting portion 62 Outer diameter value be about 61 outer diameter value of first connecting portion 12.
Further, for radiating piece 6 and 2 mating connection mode of plastic casing and structure setting of the invention, in thermal expansion In the case where shrinkage, the radiating piece 6 of aluminum, because of different shrinking percentages, causes stress that can not discharge from the shell of plastics, is easy The phenomenon that existing plastic casing 2 cracks, by opening up stress relief hole 60 in the first connecting portion 61 of the radiating piece 6 of aluminum, answers Power can be discharged into the position of aperture, effectively prevent plastic shell cracking phenomena;
Radiating piece 6 does not have aperture when first secondary design, (- 40 DEG C to 100 DEG C) 30 minutes circulations in cooling thermal impact experiment, 80th time circulation finds that plastic casing 2 has cracking phenomena, is doing cooling thermal impact experiment after aluminum component aperture, 200 circulations have no There is cracking phenomena in plastic casing 2.
Stress mainly appears on the junction of first connecting portion 61 Yu plastic casing 2, and setting stress relief hole 60 can have Effect solves;Since second connecting portion 62 is not easy to be punched out operation, the junction of second connecting portion 62 and plastic casing 2 Stress, generally by increase this at thickness avoid rupturing to overcome.
In this example, plastic casing 2 includes the first noumenon 21 of the ring disk shape, connect with the inner circumferential of the first noumenon 21 and is in cylinder Second ontology 22 of shape, with the second cone 23 that ontology 22 is connect and upper end is docked with lamp cap 1, the first noumenon 21 with a thickness of 1.4mm, the second ontology 22 with a thickness of 2.8mm;The height of second ontology 22 is 61mm.Radiating piece 6 and 2 one of plastic casing are infused It is moulded into type, that is, the outer peripheral surface of second connecting portion 62 and the inner peripheral surface of the second ontology 22 mutually attach, the upper surface of first connecting portion 61 It is mutually attached with the lower surface of the first noumenon 21, such heat-transfer effect is more preferable, reduces assembling procedure.
Further, plastic casing 2 is additionally provided with radiator structure, and radiator structure includes being connected to 21 upper surface of the first noumenon With multiple cooling fins 24 between 22 outer peripheral surface of the second ontology, multiple cooling fins 24 are along the circumferential direction successively spaced apart.Heat dissipation Piece 24 is in foliaceous, and its outer profile side is in arc transition.Radiator structure further includes set on the multiple of 21 upper surface of the first noumenon Heat bulge 25.One group of heat bulge 25 is arranged in position between every two adjacent cooling fins 24, and totally five and be in triangle Shape distribution.
The outer diameter value (118mm) of second ontology 22 be 21 outer diameter value (66mm) of the first noumenon 12 ~ 35.The first noumenon 21 Internal diameter it is identical as the internal diameter of the second ontology 22.
Cooling fin 24 on plastic casing 2 can effectively increase heat dissipation area, reduce LED lamp bead temperature, have and dissipate While thermal energy power, also there is certain reinforcing effect to the second ontology 22;In addition, the shell of existing smooth surface is being molded When be easy to appear wall unevenness it is even caused by shrink phenomenon, the present invention is arranged cooling fin 24 on plastic casing 2, can be with when injection molding The shrink phenomenon is effectively avoided, aesthetics is improved.In addition, multiple heat bulges 25 are arranged in the upper surface of the first noumenon 21, into one Step increases heat dissipation area, improves heat-sinking capability.
In conclusion LED bulb of the invention, novel in structural design, heat spreader structure design is simple ingenious, and the effect that radiates Fruit is fabulous, in addition, the integrally-built setting of LED bulb through the invention so that reduce installation assembly process (radiating piece with Plastic casing is integrally formed, without installation), to reduce cost of manufacture.
The structure design of the plastic casing is simple ingenious, and plastic casing mainly includes relatively thin the first noumenon and the second ontology And cone is additionally provided with heat dissipation knot on the basis of the first noumenon and the Proportionality design of the second body diameter on plastic casing Structure, radiator structure can dissipate the heat inside lamp body, improve the integral heat sink ability of the LED bulb, and increasing light bulb makes Use the service life.The LED bulb overall weight is light, has advantage in material cost.
The present invention is described in detail above, its object is to allow the personage for being familiar with this field technology that can understand this The content of invention is simultaneously implemented, and it is not intended to limit the scope of the present invention, all Spirit Essence institutes according to the present invention The equivalent change or modification of work, should be covered by the scope of protection of the present invention.

Claims (10)

1. a kind of LED bulb, the light bulb includes lampshade, plastic casing and lamp cap, and the lampshade further includes being set to the lampshade The drive control plate in cavity, light source board and the cooling mechanism being enclosed with plastic casing, it is characterised in that: the heat dissipation Mechanism includes radiating piece, and the radiating piece has first connecting portion and second connecting portion, and the first connecting portion is in the ring disk shape, and The downside of the first connecting portion is docked with the light source board, and the second connecting portion is cylindrical, the second connecting portion Outer peripheral surface docked with the plastic casing, the drive control plate be set to tubular the second connecting portion inner circumferential side.
2. LED bulb according to claim 1, it is characterised in that: offered in the first connecting portion multiple along its thickness Direction is spent through the stress elimination hole of setting.
3. LED bulb according to claim 2, it is characterised in that: multiple stress elimination holes are along the circumferential direction successively Interval is opened in the first connecting portion of the ring disk shape.
4. LED bulb according to claim 2, it is characterised in that: outside the stress elimination hole to the first connecting portion The distance value on periphery is less than it to the distance value of the first connecting portion inner periphery.
5. LED bulb according to claim 2, it is characterised in that: the stress elimination hole is kidney slot, and each stress disappears Except the length in hole is identical or different.
6. LED bulb according to claim 1, it is characterised in that: the upper side of the first connecting portion and described second The outer peripheral surface of interconnecting piece and the seamless attaching of the plastic casing.
7. LED bulb according to claim 1, it is characterised in that: the radiating piece and the plastic casing integrated injection molding Molding.
8. LED bulb according to claim 1, it is characterised in that: the plastic casing include the ring disk shape the first noumenon, Connect with the inner circumferential of the first noumenon and the second cylindrical ontology, connect with second ontology and upper end with it is described The cone of lamp cap docking, the outer peripheral surface of the second connecting portion and the inner peripheral surface of second ontology mutually attach, and described first connects The upper surface of socket part and the lower surface of the first noumenon mutually attach.
9. LED bulb according to claim 8, it is characterised in that: the plastic casing is additionally provided with radiator structure, described Radiator structure includes the multiple cooling fins being connected between the first noumenon upper surface and second body peripheral face, multiple The cooling fin is along the circumferential direction successively spaced apart.
10. LED bulb according to claim 9, it is characterised in that: the radiator structure further includes being set to the first Multiple heat bulges of body upper surface.
CN201910583421.4A 2019-07-01 2019-07-01 A kind of LED bulb Pending CN110230784A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910583421.4A CN110230784A (en) 2019-07-01 2019-07-01 A kind of LED bulb

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910583421.4A CN110230784A (en) 2019-07-01 2019-07-01 A kind of LED bulb

Publications (1)

Publication Number Publication Date
CN110230784A true CN110230784A (en) 2019-09-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910583421.4A Pending CN110230784A (en) 2019-07-01 2019-07-01 A kind of LED bulb

Country Status (1)

Country Link
CN (1) CN110230784A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202442305U (en) * 2011-10-05 2012-09-19 鑫日东光电股份有限公司 Heat radiation structure of LED bulb
CN205402284U (en) * 2016-03-08 2016-07-27 苏州贸锦祥电子有限公司 Integral type LED lamp cup
JP2016170950A (en) * 2015-03-12 2016-09-23 パナソニックIpマネジメント株式会社 Light source for illumination and luminaire
CN206386708U (en) * 2016-12-29 2017-08-08 生迪智慧科技有限公司 A kind of LED and its radiating piece
CN209893146U (en) * 2019-07-01 2020-01-03 红壹佰照明有限公司 LED bulb

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202442305U (en) * 2011-10-05 2012-09-19 鑫日东光电股份有限公司 Heat radiation structure of LED bulb
JP2016170950A (en) * 2015-03-12 2016-09-23 パナソニックIpマネジメント株式会社 Light source for illumination and luminaire
CN205678450U (en) * 2015-03-12 2016-11-09 松下知识产权经营株式会社 Illumination light source and illuminator
CN205402284U (en) * 2016-03-08 2016-07-27 苏州贸锦祥电子有限公司 Integral type LED lamp cup
CN206386708U (en) * 2016-12-29 2017-08-08 生迪智慧科技有限公司 A kind of LED and its radiating piece
CN209893146U (en) * 2019-07-01 2020-01-03 红壹佰照明有限公司 LED bulb

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